Summary

Description

Preliminary review of the data reveals that all lakes surveyed can be classified as having low conductibility, ranging from the low 20s for the Goodnews Lakes to the high 80s for Heart Lake, an alpine landlocked lake. pH ranged from the mid 6s for the Goodnews Lakes to 8.0 for Heart Lake, but in general the waters can be described as neutral. Dissolved oxygen was at or near saturation levels for all waters. Still lakes showed some stratification with regard to temperature, but larger windblown lakes, Togiak, Kagati, Goodnews, etc., were well mixed. Temperatures on the wind mixed lakes varied less than 2 degrees C between the surface and meters. Secchi disk readings averaged 8 meters.